package cofh.api.energy;

import net.minecraft.util.EnumFacing;


/**
 * Implement this interface on Tile Entities which should provide energy, generally storing it in one or more internal {@link IEnergyStorage} objects.
 * <p>
 * A reference implementation is provided {@link TileEnergyHandler}.
 *
 * @author King Lemming
 */
public interface IEnergyProvider extends IEnergyHandler {

    /**
     * Remove energy from an IEnergyProvider, internal distribution is left entirely to the IEnergyProvider.
     *
     * @param from       Orientation the energy is extracted from.
     * @param maxExtract Maximum amount of energy to extract.
     * @param simulate   If TRUE, the extraction will only be simulated.
     * @return Amount of energy that was (or would have been, if simulated) extracted.
     */
    int extractEnergy(EnumFacing from, int maxExtract, boolean simulate);

}
